Grain-drier.



PATENTED APR. 14, 1908.

W. WILSN.

GRAIN DRIER.

APPLIoATIoN FILED Dnc. 24. 1907.

WJTNESSES UNITED sATEs WILLIAM WILSON, SEATTLE, WASHINGTON, ASSIGNOR OF ONE-HALF TO THOMAS G. H.

orion.

` GRANTfOF WENATOHEE, WASHINGTON.

GRAIN-DRIER.

Ne.'8s4,696.

ISpeci-Ication of Letters Patent.

Patented April 14,1908.

To allwhom it may concern:

Be it known that I, WILLIAM WILSON, a citizen of the United States of America, and a resident of the city of Seattle, in the county of King and State of Washington, have invented certain new and useful, Im rovements in'Grain-Driers, of which the fol owing is a specification.

My invention relates to improvements in apparatus of the above character and aims primarily to provide a comparatively simple construction wherein grain can be dried. in an efficient manner.

With the above and other objects in view, to be referred toj as the description progresfses, the invention resides in theconstruc-A described and defined tion and arrangement of .parts hereinafter in the appended claims. l

Referring now to the accompanyingdrawing, in which like numerals of reference indicate likeparts throu hout: Figure lis a verl tical sectional view o Vmy apparatus ,and Fig.

2 is a section taken onV line Z-Z/thereof.

Referring nowto'the drawing by numerals of reference, 1 indicates the casing which may be of any desired construction, and 2, a vertical partition 'arranged therein to provide the shaft 3 and conduit4, s'aidpartition terminating below the to wallA of. the" casing to rovide an outlet for t e dustand air, as will e more fully described hereinafter. Reference numeral 5 2 indicates a dust chamber, the inner walll 5 of which, also forms one wall of conduit 4. Conduit 4 communicates with a chamber 6` in which the airis heated byl any suitable means. I prefer, however, to use an electric heater, as 7, the upper end-portion of which is pointed, so as to deflectA the air to both sides of the heater, as will be readily understood. A conduit 8 leads from chamber 6 to the lower end of shaft 3, and in this conduit I arrange a fan 9, which in operation draws the heated air from chamber 6 and forces it upwardly into shaft 3. In shaft 8, is arranged a plurality of inclined a rons 10, the alternate aprons l being reverse y inclined, as illustrated, and

lplates which are connected tions which are secured to frames of open formation (see Fig. 2), said frames' having end extensions 10 pivoted asiat 11.

Reference numeral 12 indicates suitable adjusting screws having threaded engagement in the walls of shaft 3 and having. their inner ends bearing against extensions 10 `of aprons 10, whereby said aprons can be ad,- justed, as desired to vary their inclination. ReferenceA numeral 18 indicates baffle to the opposite walls of These baflie plates arepreferably arranged slightly above the lower ends of aprons 10 so as to baflie the ascending'ht air and causefit to be deflected onto the grain from above as the grain falls from ohe apron onto another thereby preventing a direct and rapid rise of the air. The, lowest apron extends over the discharge discharge 14e.

.In o eration, grain` or other granular Inatter to e dried being fed into shaft 3, at 15, travels over'aprons 10 by gravity while the air, heated by heater wardly, through said shaft. The air upon reaching the up er portiony of shaftl 3 is drawnfby fan 9 fiack through conduit 4 to chamber 6; `Dust forced from shaft 3 will be caught in chamber 5. l

Partition 2 is of novel construction, the same being formed of spaced walls to provide a space2 extending from one side of casing 1 tof the other and being open at the side of shaft 3 for 'vertical adjustment.l

mouth of conduit 8 to the grain 7, is circulated up` said casing, whereby a wrench or the like can be inserted to operate the adjusting -screws 12-(see Fig. .2). l

Havin thus fully described my invention, what I c aim 'as new and desire to lsecure `by Letters Patent of the United States, is:

1. A grain drier com rising a casing provided witha shaft in which y is arranged a plurality of inclined aprons to provide a tortuous passage for the grain, said casing being provided with a dust chamber open to communication with-said shaft, a heating means, a conduit through which air from the up er portion of said shaft travels to said heatinfr Ameans, and a fan arranged to draw air heatedby said heating means and force the saine into the lower portion of said shaft.

2. A grain drier comprising a casing provided with a shaft and a conduit, a `partition separating said shaft and conduit, said partition being hollow and being open at each side, inclined aprons pivoted to said artitinand to the opposite Wall of said sha t, means 'l for adjusting said aprons to vary their in- I clination, the means for adjusting those l aprons pivoted to said partition projecting;

into said partition,. and means for forcing 10 heated air into said shaft.

Signed at Seattle, vWashington this 16th day of December 1907.

WILLIAM WILSON.

Witnesses:

D. B. TREFETHEN, LOREN GRIMSTEAD. 

